第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。
The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.
电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。
Supply voltage should be controlled at not more than or less than 5% of rated voltage range, if the voltage too high or too low will damage motor.
控制系统的功能是在负载随时变化的工况下，确保机组转速恒定，并使电压输出控制在要求范围之内。
The control system functions to keep speed of the machines substantially constant and the voltage within prescribed limits, even the load may change.
另外，运动控制驱动器具有很宽的电压使用范围，这使得它能够在世界各地使用。
Not only this, Motion Control with its wide voltage range can be used anywhere in the world.
电压控制电压控制是设定电压调整器的运行点从而在设计范围内控制发电机组的输出电压的变阻器。
Voltage control the voltage control is a rheostat that sets the operating point of the voltage regulator and therefore controls the output voltage of the generator set, within its design limits.
与一般开关电容变换器相比，它还具有直接反馈控制、电压和电流调整范围宽、对器件参数要求不高、集成后成品率高的优点。
Power inductor is pared with conventional switched-capacitor DC-to-DC converters, the new type is directly controlled by wide regulating range of input voltage and the load.
对于宽电压范围启动过冲问题，本位设计出一种防止过冲的启动控制电路。
About current surge when start in wide voltage, corresponding control circuit of start-up is designed in this paper.
电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。
Supply voltage should be controlled at not greater than or less than the rated voltage range of 5%, if the voltage too high or too low will damage motor.
合理地投切负载能够控制电源电压的波动范围。
Reasonably cutting off load can be controlled the range of the power voltage.
这种双重路径的做法，就是一个单一的控制电压水平，信号没有遍历充分扭转范围去中立。
This dual path approach means that a single control voltage level signal doesn't have to traverse the full reverse range to get to neutral.
在低速范围内，对无传感器感应电动机进行矢量控制时用定子电压和电流推算转子磁通是比较困难的。
The sensorless of induction motor field-oriented control employing stator voltages and currents has difficulty in estimating rotor flux in the low-speed range.
当电压、谐波测量显示值超出设定的上、下限保护值的范围时，控制器报警指示灯亮。
When display value of voltage is out of the scope of upper and lower limit protection value, alarm indication lamp of controller is lighted.
在低输入电压范围内，电场加速低能电子成为高能电子的过程为反应控制步骤。
In range of low input voltage, the step of accelerating a low energy electron to a high energy electron with electric field is rate controlling of the discharge chemical reaction of co and H_2.
不足二盎司的自重，新的放大器却能够提供了广泛的电源电压范围，从而能驱动和控制规模在13毫米到30毫米的无刷直流电动机。
Weighing in at under 2 oz, the new amplifier is able to provide a broad supply voltage range, which makes the driver capable of controlling the smaller 13mm BLDC motors to the larger 30mm motors.
在电流环中引入了一组电流交叉乘积项计算出准确的轴电压控制值，实现控制系统在较宽的速度范围内满足较高的控制精度。
By adopting the new design of circuit loop with cross-multiplying terms, the precision of voltage and speed controlled will be enhanced in a wider speed range.
参数控制实验分析表明，应在有效的范围内减小加热时间和加热长度，提高加热电压。
The results indicate that it's better to increase the heat voltage and reduce the heat time and length in a proper range.
实验结果表明，该逆变器具有控制方式简单、输入电压范围宽及效率比较高等优点。
The experimental result shown that the proposed inverter owns the advantage of simple control scheme, universal range of input voltage and high...
既要保持电压而在限制范围内的频率，需要良好的功率控制和负载调节。
To maintain both the voltage and the frequency within limits requires fine power control and load regulation.
在全速范围内分段进行恒磁通和恒电压恒功率控制，得到控制下的转矩—转速特性曲线。
Full speed within sections of constant flux and constant voltage constant power control, we can get the torque - speed characteristics under the control.
它采用了绝缘栅极双极型二极管和电压型换流器，控制和运行方式简单，输出波形好，具有广阔的应用范围和良好的发展前景。
It can be widely used for its easy and simple control and operation as well as for its good output waveforms.
本文在超声发生器中加入功率因数校正电路（APFC），并利用单片机控制数字电位器实现了对电压反馈网络的调节，从而实现APFC输出电压在一定范围内的自适应控制。
The self-adaptable control of output voltage could be realized under certain range by adding a APFC in ultrasonic generator and adjusting voltage feedback network with digital potentiometers.
输出电压和电流稳定，焊接质量高，控制技术先进，电流调节范围宽。
Steady output voltage and current, high quality welding, advanced control technology, wide current scope.
给出了实际测试结果并介绍扩展美国PARC公司的173恒电位仪的参比电压控制范围的方法。
The method of expanding the range of reference electrode potential for PARC potentiostat of model 173 is shown, and the tes...
本发明所制备材料的响应电压范围大，可在不同的电压作用下收缩，具有控制方便、可实现定量控制、易加工成型及应用范围广的特点。
The material of the present invention has wide responding voltage range, may shrink in different voltages, and has the features of convenient control, easy forming and wide application range.
与基本ZVS三电平变换器相比，该变换器具有辅助网络简单、实现零电压范围宽、副边无电压过冲和占空比丢失以及控制方式灵活等优点。
It has many remarkable advantages such as simple auxiliary circuit, realizing ZVS in the wide load range, no voltage spike and surge of the transformer secondary side and easy to be controlled.
通过全网离散无功优化计算获得各子站系统的电压和无功控制范围，可实现对电网电压无功全局优化和分布式实时控制。
The control range of voltage reactive power subsystems can be obtained according to global discrete reactive optimization, and the global voltage reactive...
数值实验显示该控制器具有很好的普适性，以及此系统能快速跟踪额定电压范围内的参考电压，转矩脉动能被有效抑制。
It can ensure that the controlled system tracks rapidly the reference voltage within the scope of the given saturation voltage, while torque pulsation can be attenuated effectively.
所述调整控制单元通过接收 所述比较单元输出的信号来控制所述输出电压，使其稳定在一定范围之内。
The regulating controlling unit receiving the signal output by the comparing unit, and keep it at certain extent.
所述调整控制单元通过接收 所述比较单元输出的信号来控制所述输出电压，使其稳定在一定范围之内。
The regulating controlling unit receiving the signal output by the comparing unit, and keep it at certain extent.
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